Open Source Licenses

This page is provided pursuant to Article 21 (Open Source License Notice) of the Terms of Service. This service incorporates the following open source software components. Each component is used in compliance with its respective license terms.

FFmpeg

Enchant includes FFmpeg 8.1.1 (the libavcodec, libavformat, libavutil, libavdevice, libavfilter, libswscale and libswresample libraries and the ffmpeg and ffprobe programs), Copyright © the FFmpeg developers. FFmpeg 8.1.1, LGPL-2.1-or-later, built without GPL/nonfree components; source and build scripts: https://aienchant.com/oss/ffmpeg/8.1.1/. The license text is available at gnu.org/licenses/old-licenses/lgpl-2.1.

That folder holds the unmodified FFmpeg release we build from, and for each shipped build its exact configure line, build script, build record, the checksums of the resulting files and the sources of the libraries compiled into it. We do not modify FFmpeg. You may replace the FFmpeg libraries in your installation with your own or a modified build; the README in each build folder explains how.

The FFmpeg libraries compiled into the Windows build: dav1d (BSD 2-Clause License, Copyright © VideoLAN and dav1d authors), zlib (zlib License, Copyright © Jean-loup Gailly and Mark Adler), nv-codec-headers (MIT License, Copyright © NVIDIA Corporation) and the AMD AMF headers (MIT License, Copyright © Advanced Micro Devices, Inc.). The Windows build is compiled with llvm-mingw and contains parts of the mingw-w64 runtime, whose license notice is included in the same folder.

The Windows video engine also contains OpenCV's FFmpeg video I/O plugin (opencv_videoio_ffmpeg), shipped unmodified as distributed by the OpenCV project. It includes FFmpeg 4.4.4, LGPL-2.1-or-later; source and the plugin's build scripts: https://aienchant.com/oss/ffmpeg/4.4.4/. The plugin also contains libvpx (BSD 3-Clause License, Copyright © the WebM project authors), libaom (BSD 2-Clause License and the Alliance for Open Media Patent License 1.0, Copyright © the Alliance for Open Media) and the OpenH264 API headers (BSD 2-Clause License, Copyright © Cisco Systems, Inc.) for a loader that uses Cisco's OpenH264 library only if you install it separately; Enchant does not ship that library.

Chromium Embedded Framework (CEF)

Copyright © The Chromium Embedded Framework Authors and The Chromium Authors. Licensed under the BSD 3-Clause License. CEF embeds the Chromium project. The license text is available at opensource.org/license/bsd-3-clause. Project: github.com/chromiumembedded/cef.

MediaInfo

This product uses the MediaInfo library, Copyright © 2002-2024 MediaArea.net SARL, distributed under a BSD-style license. More information at mediaarea.net/MediaInfo.

SQLite

SQLite is in the public domain. More information at sqlite.org.

PyTorch (LibTorch)

Copyright © Meta Platforms, Inc. and affiliates. Licensed under the BSD 3-Clause License. Project: pytorch.org.

OpenCV

Copyright © OpenCV team. Licensed under the Apache License 2.0. Project: opencv.org.

Other Open Source Components

This service also includes software components from Baidu Inc. (Copyright © Baidu Inc., licensed under the Apache License 2.0) and Fudan University (Copyright © Fudan University, licensed under Apache 2.0 / Research Use terms). The Apache License 2.0 full text is available at apache.org/licenses/LICENSE-2.0.

This service further includes the following open source libraries, each used under its respective license: JsonCpp (MIT License), stb (MIT License / Public Domain), FBGEMM (BSD 3-Clause), asmjit (Zlib License), libuv (MIT License), the LLVM OpenMP runtime (Apache License 2.0 with LLVM Exception), and zlib (Zlib License).

For inquiries regarding open source licenses, contact [email protected].